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Genomic surveillance uncovers a pandemic clonal lineage of the wheat blast fungus
Auteur(s)
Sergio M. Latorre
Vincent M. Were
Andrew J. Foster
Thorsten Langner
Angus Malmgren
Adeline Harant
Soichiro Asuke
Sarai Reyes-Avila
Dipali Rani Gupta
Cassandra Jensen
Weibin Ma
Nur Uddin Mahmud
Md. Shåbab Mehebub
Rabson M. Mulenga
Abu Naim Md. Muzahid
Sanjoy Kumar Paul
S. M. Fajle Rabby
Abdullah Al Mahbub Rahat
Lauren Ryder
Ram-Krishna Shrestha
Suwilanji Sichilima
Darren M. Soanes
Pawan Kumar Singh
Alison R. Bentley
Diane G. O. Saunders
Yukio Tosa
Kurt H. Lamour
Tofazzal Islam
Batiseba Tembo
Joe Win
Nicholas J. Talbot
Hernán A. Burbano
Sophien Kamoun
Editeur(s)
Joseph Heitman
Date de parution
2023
In
PLOS Biology
Vol.
21
No
4
Résumé
Wheat, one of the most important food crops, is threatened by a blast disease pandemic. Here, we show that a clonal lineage of the wheat blast fungus recently spread to Asia and Africa following two independent introductions from South America. Through a combination of genome analyses and laboratory experiments, we show that the decade-old blast pandemic lineage can be controlled by the Rmg8 disease resistance gene and is sensitive to strobilurin fungicides. However, we also highlight the potential of the pandemic clone to evolve fungicide-insensitive variants and sexually recombine with African lineages. This underscores the urgent need for genomic surveillance to track and mitigate the spread of wheat blast outside of South America and to guide preemptive wheat breeding for blast resistance.
Identifiants
Type de publication
journal article
